Minnesota man dies while snorkeling near Sombrero Key Lighthouse

A 60 year old Zimmerman, Minnesota man identified as Eric Adams Anderson lost consciousness while snorkeling near the Sombrero Key Lighthouse on December 27, 2025, the Monroe County Sheriff’s Office reported. Nearby boaters began lifesaving measures immediately and the U.S. Coast Guard brought him to shore. He was pronounced dead after arrival at land.

Authorities said there is no indication of foul play and that an autopsy has been scheduled to determine the cause of death. The Monroe County Sheriff’s Office handled the initial investigation while the Coast Guard provided medical evacuation and transport support. Details about the timeline of medical care and the location of land transport were not released.

The incident underscores risks associated with water recreation in and around the Florida Keys, particularly during the busy holiday season when visitor numbers and boating traffic increase. Sombrero Key Lighthouse sits off the coast of Marathon within Monroe County waters, a popular area for snorkeling and diving because of its reefs and clear water. Local emergency responders and maritime agencies frequently coordinate on rescue operations in this zone.

For residents and visitors who plan to snorkel or dive in Monroe County waters, established safety practices can reduce risk. If you snorkel, check weather and sea conditions before entering the water, never snorkel alone, use an appropriate flotation device, and make sure someone on shore or on your boat knows your plan and expected return time. Boat operators should maintain a safe distance from swimmers and mark dive flags when people are in the water.

The loss will likely be felt in the local boating and diving community, where holiday outings and family trips bring both regulars and visitors to Marathon and surrounding Keys. Local agencies remind the public that prompt reporting of emergencies, and familiarity with emergency contact procedures on the water, can speed response times.

Officials have not released further personal information about Mr Anderson and have asked that inquiries be directed to the Monroe County Sheriff’s Office. The pending autopsy will provide more definitive information about the cause of death and may inform future safety guidance for recreational water users in the area.